Air quality index [µg/m3]:
excellent ≤ 12
good ≤ 36
lightly polluted ≤ 60
moderately polluted ≤ 84
heavily polluted ≤ 120
severely polluted > 120
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
000039lightly pollutedexcellent81excellent
230033goodexcellent61excellent
220033goodexcellent61excellent
210024goodexcellent61excellent
200029goodexcellent61excellent
190024goodexcellent51excellent
180024goodexcellent51excellent
170017goodexcellent41excellent
160018goodexcellent41excellent
150014goodexcellent41excellent
140020goodexcellent41excellent
130021goodexcellent41excellent
120019goodexcellent41excellent
110015goodexcellent51excellent
100021goodexcellent61excellent
090022goodexcellent71excellent
080025goodexcellent71excellent
070024goodexcellent71excellent
060024goodexcellent71excellent
050022goodexcellent61excellent
040023goodexcellent71excellent
030033goodexcellent71excellent
020026goodexcellent71excellent
010027goodexcellent81excellent